On 17/11/17 10:00, Peter Ujfalusi wrote:
> I believe the intention of the commit 2c9fc9bf45f8
> ("drm: omapdrm: Move FEAT_HDMI_* features to hdmi4 driver")
> was to identify omap4430 ES1.x, omap4430 ES2.x and other OMAP4 revisions,
> like omap4460.
>
> By using family=OMAP4 in the match the code will treat omap4460 ES1.x in a
> same way as it would treat omap4430 ES1.x
>
> This breaks HDMI audio on OMAP4460 devices (PandaES for example).
>
> Correct the match rule so we are not going to get false positive match.
>
> Fixes: 2c9fc9bf45f8 ("drm: omapdrm: Move FEAT_HDMI_* features to hdmi4 driver")
>
> CC: stable@xxxxxxxxxxxxxxx # 4.14
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> ---
> drivers/gpu/drm/omapdrm/dss/hdmi4_core.c | 17 ++++++++++++++---
> 1 file changed, 14 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
> index 62e451162d96..07945a40c33a 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
> @@ -902,9 +902,20 @@ static const struct hdmi4_features hdmi4_es3_features = {
> };
>
> static const struct soc_device_attribute hdmi4_soc_devices[] = {
> - { .family = "OMAP4", .revision = "ES1.?", .data = &hdmi4_es1_features },
> - { .family = "OMAP4", .revision = "ES2.?", .data = &hdmi4_es2_features },
> - { .family = "OMAP4", .data = &hdmi4_es3_features },
> + {
> + .machine = "OMAP4430",
> + .revision = "ES1.?",
> + .data = &hdmi4_es1_features,
> + },
> + {
> + .machine = "OMAP4430",
> + .revision = "ES2.?",
> + .data = &hdmi4_es2_features,
> + },
> + {
> + .family = "OMAP4",
> + .data = &hdmi4_es3_features,
> + },
> { /* sentinel */ }
> };
>
>
Looks good to me.
Was there are reason to change the format from single-line to multi-line?
While at it, I think it would make sense to rename hdmi4_es3_features
to... hdmi4_features? It's not "ES3" in any way.
Tomi
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